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Re: Environmental Chem

Posted: March 22nd, 2009, 4:39 pm
by Flavorflav
Quartz is SiO2. You are thinking of the tetrahedron, which is SiO4, but each oxygen is actually shared between two tetrahedra, so it is actually SiO2.

Re: Environmental Chem

Posted: March 23rd, 2009, 7:24 am
by 2win
Why would they ask that question?

Re: Environmental Chem

Posted: March 23rd, 2009, 3:39 pm
by gyourkoshaven
I could see it in C, maybe, but in B? :?

Re: Environmental Chem

Posted: March 23rd, 2009, 3:49 pm
by gneissisnice
Flavorflav wrote:Quartz is SiO2. You are thinking of the tetrahedron, which is SiO4, but each oxygen is actually shared between two tetrahedra, so it is actually SiO2.
Hmm, it appears that youre correct. Im sad now =(

Re: Environmental Chem

Posted: March 23rd, 2009, 4:48 pm
by Phenylethylamine
Ooh, ouch. What happened to being better at Rocks than Danny? lol

Re: Environmental Chem

Posted: March 23rd, 2009, 4:59 pm
by Mr. Cool
I will compete in this on Saturday. I can't wait!

Re: Environmental Chem

Posted: March 23rd, 2009, 5:00 pm
by croman74
Good luck Mr. Cool! You're competing at states, right? I hope you medal!

Re: Environmental Chem

Posted: March 23rd, 2009, 5:03 pm
by Mr. Cool
Yes, the Tennessee State SO competition.

Re: Environmental Chem

Posted: March 23rd, 2009, 5:06 pm
by croman74
Is Tennessee usually a competitive state? (sorry for being so ignorant)

Re: Environmental Chem

Posted: March 23rd, 2009, 5:08 pm
by Mr. Cool
Recently (last 3 years or so) competition has gotten a lot tougher. My school (Bearden) has dominated and won it 19 times out of 21, but we may actually lose this year, though I am confident that we will put forth our best effort. (Only 1st place goes to Nationals)